A names – those that start with the letter A – have become the most widely used in the U.S., given to over 10 percent of all babies, more than double the proportion of children who were given A names in the 1950s.

You can peg the popularity of A names to pure fashion, and definitely, A names ranging from the classic Abigail and Alexander to the trendy Addison and Aiden have been on the rise for a couple of decades now. While this may be part of an overall trend toward vowel names, which are up across the board while most consonant-starting names are trending down, A is up the highest.

But there’s evidence that A names may be beneficial for your child in more substantial ways. A study by researchers at Yale and the University of California-San Diego found that students whose names begin with the letters A and B earn better grade point averages than those whose names start with C or D. And more law school students named Anna and Andrew tend to go to top-ranked universities like Stanford than those called Chris and Drew.

Even more significant, another study suggests that people with A names live longer – in some cases, as much as a decade longer – than those whose names start with the letter D. Scary, but compelling if you want to give your child every advantage in life.

A names account for 20 entries on the girls’ Top 100, up from only five (Ann, Anne, Anna, Anita, and Alice) in 1950. They are, in order of rank with their standing in parentheses, for girls: